Overview
Lanthanum hydroxide (La(OH)3) is a rare earth compound derived from lanthanum, a key element in the lanthanide series. It is primarily produced through the reaction of lanthanum salts with alkaline solutions. Due to its unique chemical properties, it is widely utilized in industrial applications such as catalysis and advanced material manufacturing. The compound is known for its high thermal stability and basic nature, making it suitable for various chemical processes. Its role in environmental applications, such as water treatment and pollution control, has also gained attention in recent years.
Physical and Chemical Properties
Lanthanum hydroxide appears as a white crystalline powder with a density of 4.6 g/cm³. It is slightly soluble in water but readily dissolves in acidic solutions, forming lanthanum salts. The compound decomposes upon heating, releasing water and forming lanthanum oxide (La2O3). Its high thermal stability and basic properties make it an effective catalyst in organic synthesis and petroleum refining. Additionally, its ability to absorb phosphates and other anions is leveraged in water treatment applications.
Main Applications
Lanthanum hydroxide is extensively used in the production of catalysts for petroleum cracking and automotive exhaust systems. Its role in reducing harmful emissions makes it valuable in environmental protection. In the ceramics industry, it is employed to enhance the durability and thermal resistance of materials. It is also a key component in optical glass manufacturing, where it improves refractive index and clarity. Emerging applications include its use in batteries and phosphors for electronic devices.
Safety and Storage
While lanthanum hydroxide is not highly toxic, it can cause irritation upon contact with skin or eyes. Proper handling requires the use of gloves, goggles, and respiratory protection if dust is present. Storage conditions should prioritize a cool, dry environment to prevent moisture absorption and degradation. Containers must be tightly sealed and labeled clearly to avoid accidental misuse.
B2B Procurement Guide
When sourcing lanthanum hydroxide, buyers should prioritize suppliers with certifications such as ISO 9001 to ensure product quality. Purity levels (typically 99% or higher) should be verified through third-party testing. Bulk purchasing is recommended to reduce costs, as prices can vary significantly based on quantity and purity. Long-term contracts with reliable suppliers can also mitigate price fluctuations in the rare earth market.
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